Copper wire
First Claim
1. A copper wire having a substantially uniform unoriented grain structure that is essentially columnar grain free, said wire being made from electrodeposited copper foil and having an ultimate tensile strength at 23°
- C. in the range of about 60,000 psi to about 95,000 psi.
1 Assignment
0 Petitions
Accused Products
Abstract
This invention relates to copper wire having a substantially uniform unoriented grain structure that is essentially columnar grain free. This invention also relates to a process for making copper wire comprising: cutting copper foil to form at least one strand of copper wire, said copper foil being an annealable electrodeposited copper foil having a substantially uniform unoriented grain structure that is essentially columnar grain free, said foil being characterized by a fatigue ductility of at least about 25% after being annealed at 177° C. for 15 minutes; and shaping said strand of wire to provide said strand with desired cross-sectional shape and size. This invention also relates to a process for making copper wire comprising: flowing an aqueous electrolyte solution between an anode and a cathode and applying an effective amount of voltage across the anode and the cathode to deposit copper foil on the cathode, said electrolyte solution being characterized by a chloride ion concentration of up to about 5 ppm and an organic additive concentration of up to about 0.2 ppm; cutting said foil to form at least one strand of wire; and shaping said strand of wire to provide said strand with desired cross-sectional shape and size.
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Citations
8 Claims
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1. A copper wire having a substantially uniform unoriented grain structure that is essentially columnar grain free, said wire being made from electrodeposited copper foil and having an ultimate tensile strength at 23°
- C. in the range of about 60,000 psi to about 95,000 psi.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification